Add devfreq driver for NVIDIA Tegra20 SoC's. The driver periodically
reads out Memory Controller counters and adjusts memory frequency based
on the memory clients activity.
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[Removed MAINTAINERS updates by MyungJoo so that it can be sent elsewhere.]
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
